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86817199730 = 25311491879567
BaseRepresentation
bin101000011011010110…
…1010101011001110010
322022002102212200221212
41100312231111121302
52410300200342410
6103514441520122
76162261010322
oct1206655253162
9268072780855
1086817199730
1133901056148
12149aaaa3042
1382575c6401
1442b830d282
1523d1c29b05
hex1436b55672

86817199730 has 32 divisors (see below), whose sum is σ = 162394675200. Its totient is φ = 33381092160.

The previous prime is 86817199727. The next prime is 86817199789. The reversal of 86817199730 is 3799171868.

It is a self number, because there is not a number n which added to its sum of digits gives 86817199730.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893594 + ... + 985973.

It is an arithmetic number, because the mean of its divisors is an integer number (5074833600).

Almost surely, 286817199730 is an apocalyptic number.

86817199730 is a deficient number, since it is larger than the sum of its proper divisors (75577475470).

86817199730 is a wasteful number, since it uses less digits than its factorization.

86817199730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879754.

The product of its (nonzero) digits is 4572288, while the sum is 59.

The spelling of 86817199730 in words is "eighty-six billion, eight hundred seventeen million, one hundred ninety-nine thousand, seven hundred thirty".

Divisors: 1 2 5 10 31 62 149 155 298 310 745 1490 4619 9238 23095 46190 1879567 3759134 9397835 18795670 58266577 116533154 280055483 291332885 560110966 582665770 1400277415 2800554830 8681719973 17363439946 43408599865 86817199730